Steam-boiler.



J. BUYHERS. STEAM BOILER.

APlLIOATION FILED FEB. 16, 1910. A 961 ,082. Patented June'7, 1910.

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WITNESSES:

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WWW I INVENTOR A TTORNE Y :r. BUYHERS.

STEAM BOILER.

APPLICATION nun r3346, 1910.. 961,082. v Patented June 7,1910.

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WITNESSE INVENTOR ATTORNE Y ANDREW a GRAHAM co. PHDTO-LITHDGRAFNERS.WASHINGTON, u

UNITED STATES PATENT OFFICE.

JAMES BUYHERS, OF CASEY, ILLINOIS.

STEAM-BOILER.

To all whom it may concern:

Be it known that I, JAMES BUYr-mRs, a citizen of the United States, anda resident of the city of Casey, in the county of Clark and State ofIllinois, have invented a new and useful Stean1-Boiler, of whichinvention the following is a specification.

This invention has for its object to provide a boiler which will becapable of generating steam rapidly and with the expenditure of aminimum amount of fuel and manual attention.

Other and more specific objects are to provide a boiler of the characterdescribed which will be economical of construction, durable, and notliable to get out of repair.

My invention consists in the new combination, construction andarrangement of parts shown in the accompanying drawings, described inthis specification, and defined in the appended claims; it beingunderstood that minor changes might be made in the details thereofwithin the scope as defined by the claims, without departing from thenature of my invention or sacrificing any of its advantages.

In the drawings, similar characters of reference refer to correspondingparts throughout the several views, in which Figure 1 is a verticalcentral longitudinal sectional view of my improved boiler and Fig. 2 isa front view thereof. Fig. 8 is a transverse sectional view taken on theline 3-3; Fig. & is a transverse sectional view taken on the line M;Fig. 5 is a transverse sectional view taken on the line 5-5; and Fig. 6is a transverse sectional View taken on the line 66 in Fig. 1.

The body-portion of my improved boiler consists of the arched metalsheet A, the lower and straightened portions A of which will constitutethe outer surfaces of the walls B and B These walls are composed ofrefractory material such as plastic fire-proof composition, fire-clay orfirebrick, and are provided with the sheet metal lining-plates C and Cwhich are held in their respective positions by bolts D. The bases ofthese walls are rendered substantial and durable by being provided withthe channel-shaped shoes E. The crown sheet F, disposed horizontally,and riveted in position at its sides and ends, to the frontal plate Hand to the rear-plate H is support ed by a suitable number of stay boltsG.

The fire-box, provided with the usual Specification of Letters Patent.

Application filed February 16, 1910.

Patented June 7, 1910.

Serial No. 544,247.

grate-bars I, has communication through the opening K in the rear wallthereof, and through the opening K in the rear plate H with thecombustion chamber that 1s formed by the cylindrical sheet metal shellJ. The general form and arrangement of the said rear-plate H is clearlyshown in Fig. 1 and Fig. 5. The steel tubes L have their open forwardends secured by being screwed into the rear plate H and they aresupported in the horizontal position by the crossbars M that are boltedto the shell J, and as shown in Fig. 4. The caps L which close the rearends of these tubes are provided with the angular projections L andafter being screwed onto the ends of the tubes are calked. To remove oneof the tubes from its connection with the rear-plate H a wrench or othersuitable implement is applied to said cap.

The end-plate N which is fastened to the shell J and which is providedwith the opening N in its lower portion, forms such partial closure ofthe rear end of the said shell as to bafitle, and to thereby conservethe heat contained within the combustion chamher. The extreme rear ofthe shell is closed by the rear-head plate 0 whereby the smoke-room P isformed and into which smoke-room the combustion chamber hascommunication through the said opening N Leading up from the smoke-roomis the usual stack Q.

The hole P which is kept normally closed by the damperdoor P afiordsfacility whereby the spent products of combustion including cinders andsoot, may be easily removed from the smoke-room.

The openings J and J in the top and bottom portions respectively, of theshell, and which are closed by the removable plates J afford access tothe combustion chamber for the cleaning of same and the tubes.

The end-plate N and the rear-head plate 0 are secured in position bybolts N and 0 respectively rendering the said plates capable of beingeasily removed.

The body-portion of the boiler is provided with the usual steam-dome R,and the gagecocks S.

T T designate suitable bracing connections for the shell J.

By the foregoing construction, combination and arrangement of parts isprovided a boiler of such structural qualities that the strains incidentto expansion and contraction will not operate to weaken or impair any ofthe vital parts thereof. The construction of same will be economical andthere will be small liability of serious damage or derangement shouldthe water level therein become temporarily below gage.

The water is fed into the boiler at the inlets U arranged at each sideof the body-portion and at points slightly above the crown sheet.Immediately from the commencement of the firing of this boiler, the heatis effectively conserved, the initial heat of the fire-box operating 11on the crown-sheet and the colder portion of the water, and the heatgenerated in the combustion chamber and about the tubes, being soutilized, that the water is heated rapidly and will be maintaineduniformly at temperature of desired high degree.

By reason of the positive draft afforded a hot fire may be obtainedquickly, and the intensity of combustion within the shell may beregulated by the damper-door P Boilers constructed in accordance with myinvention having its qualities of simple and rugged construction and ofeasy firing and rapid steaming, and being comparatively light in weight,are especially useful whereever the services of portable boilers are desired.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a steam boiler of the kind described, the combination of an archedplate having its sides disposed downwardly and substantially parallel toeach other, a frontal plate and a rear plate, a crown sheet riveted tothe frontal plate and the rear plate and to the sides of the archedplate there being an opening in the said rear plate below the crownsheet, refractory material to form an interior lining for that portionof the sides and the frontal and rear plates below the crown sheet,tubes having their open ends secured to the rear plate and having theirrear ends closed, a shell to form a combustion chamber about the saidtubes and being riveted to the rear plate there being an opening in theshell at its rear end for a smoke stack, substantially as described.

2. In a steam boiler of the kind described, the combination of an archedplate having its sides disposed downwardly and substantially parallel toeach other, a frontal plate and a rear plate, a crown sheet riveted tothe frontal plate and the rear plate and to the sides of the archedplate there being an opening in the said rear plate underneath the crownsheet, refractory material to form an interior lining for that portionof the sides and the frontal and rear plate below the crown sheet, tubeshaving their open ends secured to the rear plate and having their rearends closed, a shell to form a combustion chamber about the said tubesand being riveted to the rear plate there being an opening in the shellat its rear end for a smoke stack, a baflie plate provided with anopening and interposed between the tubes and the opening for the smokestack.

In witness whereof I have hereunto signed my name, before and in thepresence of two subscribing witnesses.

' JAMES BUYHERS.

Witnesses:

JEssE O. BURK, JOHN D. WATTS.

